package com.zxc.gulimall.cart.vo;

import lombok.Data;

import java.math.BigDecimal;
import java.util.List;

//整个购物车
//需要计算价格，重写get方法，保证每次获取属性都会进行计算
public class Cart {
    private List<CartItem> items;//购物车的购物项
    private Integer countNum;//商品的数量
    private Integer countType;//商品类型的数量
    private BigDecimal totalAmount;//总价
    private BigDecimal reduce = new BigDecimal("0.00");//减免价格

    public List<CartItem> getItems() {
        return items;
    }

    public void setItems(List<CartItem> items) {
        this.items = items;
    }

    public Integer getCountNum() {
        int count = 0;
        if (items != null && items.size() > 0){
            //当前有商品
            for (CartItem cartItem : items){
                count += cartItem.getCount();
            }
        }
        return count;
    }

    public Integer getCountType() {
        return countType;
    }

    public void setCountType(Integer countType) {
        this.countType = countType;
    }

    public BigDecimal getTotalAmount() {
        BigDecimal bigDecimal = new BigDecimal("0");
        if (items != null && items.size() > 0){
            //当前有商品
            for (CartItem cartItem : items){
                if (cartItem.getCheck()){
                    bigDecimal = bigDecimal.add(cartItem.getTotalPrice());
                }
            }
        }

        //减去优惠价格
        BigDecimal subtract = bigDecimal.subtract(getReduce());
        return bigDecimal;
    }

    public void setTotalAmount(BigDecimal totalAmount) {
        this.totalAmount = totalAmount;
    }

    public BigDecimal getReduce() {
        return reduce;
    }

    public void setReduce(BigDecimal reduce) {
        this.reduce = reduce;
    }
}
